implemented working externAgent wrapper

[progcomp10.git] / src / link / pexpect / examples / passmass.py

diff --git a/src/link/pexpect/examples/passmass.py b/src/link/pexpect/examples/passmass.py
new file mode 100755 (executable)
index 0000000..b1e17b9
--- /dev/null
+++ b/src/link/pexpect/examples/passmass.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+
+"""Change passwords on the named machines. passmass host1 host2 host3 . . .
+Note that login shell prompt on remote machine must end in # or $. """
+
+import pexpect
+import sys, getpass
+
+USAGE = '''passmass host1 host2 host3 . . .'''
+COMMAND_PROMPT = '[$#] '
+TERMINAL_PROMPT = r'Terminal type\?'
+TERMINAL_TYPE = 'vt100'
+SSH_NEWKEY = r'Are you sure you want to continue connecting \(yes/no\)\?'
+
+def login(host, user, password):
+
+    child = pexpect.spawn('ssh -l %s %s'%(user, host))
+    fout = file ("LOG.TXT","wb")
+    child.setlog (fout)
+
+    i = child.expect([pexpect.TIMEOUT, SSH_NEWKEY, '[Pp]assword: '])
+    if i == 0: # Timeout
+        print 'ERROR!'
+        print 'SSH could not login. Here is what SSH said:'
+        print child.before, child.after
+        sys.exit (1)
+    if i == 1: # SSH does not have the public key. Just accept it.
+        child.sendline ('yes')
+        child.expect ('[Pp]assword: ')
+    child.sendline(password)
+    # Now we are either at the command prompt or
+    # the login process is asking for our terminal type.
+    i = child.expect (['Permission denied', TERMINAL_PROMPT, COMMAND_PROMPT])
+    if i == 0:
+        print 'Permission denied on host:', host
+        sys.exit (1)
+    if i == 1:
+        child.sendline (TERMINAL_TYPE)
+        child.expect (COMMAND_PROMPT)
+    return child
+
+# (current) UNIX password:
+def change_password(child, user, oldpassword, newpassword):
+
+    child.sendline('passwd') 
+    i = child.expect(['[Oo]ld [Pp]assword', '.current.*password', '[Nn]ew [Pp]assword'])
+    # Root does not require old password, so it gets to bypass the next step.
+    if i == 0 or i == 1:
+        child.sendline(oldpassword)
+        child.expect('[Nn]ew [Pp]assword')
+    child.sendline(newpassword)
+    i = child.expect(['[Nn]ew [Pp]assword', '[Rr]etype', '[Rr]e-enter'])
+    if i == 0:
+        print 'Host did not like new password. Here is what it said...'
+        print child.before
+       child.send (chr(3)) # Ctrl-C
+        child.sendline('') # This should tell remote passwd command to quit.
+        return
+    child.sendline(newpassword)
+
+def main():
+
+    if len(sys.argv) <= 1:
+        print USAGE
+        return 1
+
+    user = raw_input('Username: ')
+    password = getpass.getpass('Current Password: ')
+    newpassword = getpass.getpass('New Password: ')
+    newpasswordconfirm = getpass.getpass('Confirm New Password: ')
+    if newpassword != newpasswordconfirm:
+        print 'New Passwords do not match.'
+        return 1
+
+    for host in sys.argv[1:]:
+        child = login(host, user, password)
+        if child == None:
+            print 'Could not login to host:', host
+            continue
+        print 'Changing password on host:', host
+        change_password(child, user, password, newpassword)
+        child.expect(COMMAND_PROMPT)
+        child.sendline('exit')
+
+if __name__ == '__main__':
+    try:
+        main()
+    except pexpect.ExceptionPexpect, e:
+        print str(e)
+